test/README.md

# Apache Thrift - integration test suite

This is the cross everything integration test suite for Apache Thrift.

## Run

### A. Using Make

The test can be executed by:

    make cross

This starts the [test.py](test.py) script which does the real cross test with
different transports, protocols and languages.

Note that this requires basically everything to be built, otherwise test cases
for missing languages will fail. If you skip building some languages, or simply
need more control, read following section.

### B. Using test script directly

Alternatively, you can invoke [test.py](test.py) directly. You need to run`make
precross` once before executing it for the first time.

For example, if you changed something in `nodejs` library and need to verify
the patch, you can skip everything except `nodejs` itself and some reference
implementation (currently `cpp` and `java` are recommended) like this:

    ./configure --without-c_glib -without-csharp --without-erlang --without-lua ...
    make precross -j8
    test/test.py --server cpp,java --client nodejs
    test/test.py --server nodejs --client cpp,java

## Test case definition file

The cross test cases are defined in [tests.json](tests.json).
The root element is collection of test target definitions.
Each test target definition looks like this:

    {
      "name": "somelib",

      "client": {
        "command": ["somelib_client_executable"],
        "workdir": "somelib/bin",
        "protocols": ["binary"],
        "transports": ["buffered"],
        "sockets": ["ip"],
      },
      "server": {
        "command": ["somelib_server_executable"],
        "workdir": "somelib/bin",
        "protocols": ["binary"],
        "transports": ["buffered"],
        "sockets": ["ip", "ip-ssl"],
      }
    }

Either client or server definition or both should be present.

Parameters that are common to both `client` and `server` can be put to target
definition root:

    {
      "name": "somelib",

      "workdir": "somelib/bin",
      "protocols": ["binary"],
      "transports": ["buffered"],
      "sockets": ["ip"],

      "client": { "command": ["somelib_client_executable"] },
      "server": {
        "command": ["somelib_server_executable"],
        "sockets": ["ip-ssl"]
      }
    }

For the complete list of supported keys and their effect, see source code
comment at the opt of [crossrunner/collect.py](crossrunner/collect.py).


## List of known failures

Since many cross tests currently fail (mainly due to partial incompatibility
around exception handling), the test script specifically report for "not known
before" failures.

For this purpose, test cases known to (occasionally) fail are listed in
`known_failures_<platform>.json` where `<platform>` matches with python
`platform.system()` string.

Currently, only Linux version is included.

FYI, the file is initially generated by

    test/test.py --update-expected-failures=overwrite

after a full test run, then repeatedly

    test/test.py --skip-known-failures
    test/test.py --update-expected-failures=merge

to update the known failures, run

    make fail

## Test executable specification

### Command line parameters

Unit tests for languages are usually located under lib/<lang>/test/
cross language tests according to [ThriftTest.thrift](ThriftTest.thrift) shall be
provided for every language including executables with the following command
line interface:

**Server command line interface:**

    $ ./cpp/TestServer -h
    Allowed options:
      -h [ --help ]               produce help message
      --port arg (=9090)          Port number to listen
      --domain-socket arg         Unix Domain Socket (e.g. /tmp/ThriftTest.thrift)
      --named-pipe arg            Windows Named Pipe (e.g. MyThriftPipe)
      --server-type arg (=simple) type of server, "simple", "thread-pool",
                                  "threaded", or "nonblocking"
      --transport arg (=buffered) transport: buffered, framed, http, anonpipe
      --protocol arg (=binary)    protocol: binary, compact, json
      --ssl                       Encrypted Transport using SSL
      --processor-events          processor-events
      -n [ --workers ] arg (=4)   Number of thread pools workers. Only valid for
                              thread-pool server type

**Client command line interface:**

    $ ./cpp/TestClient -h
    Allowed options:
      -h [ --help ]               produce help message
      --host arg (=localhost)     Host to connect
      --port arg (=9090)          Port number to connect
      --domain-socket arg         Domain Socket (e.g. /tmp/ThriftTest.thrift),
                                  instead of host and port
      --named-pipe arg            Windows Named Pipe (e.g. MyThriftPipe)
      --anon-pipes hRead hWrite   Windows Anonymous Pipes pair (handles)
      --transport arg (=buffered) Transport: buffered, framed, http, evhttp
      --protocol arg (=binary)    Protocol: binary, compact, json
      --ssl                       Encrypted Transport using SSL
      -n [ --testloops ] arg (=1) Number of Tests
      -t [ --threads ] arg (=1)   Number of Test threads

If you have executed the **make check** or **make cross** then you will be able to browse
[gen-html/ThriftTest.html](gen-html/ThriftTest.html) with the test documentation.

### Return code

The return code (exit code) shall be 0 on success, or an integer in the range 1 - 255 on errors.
In order to signal failed tests, the return code shall be composed from these bits to indicate
failing tests:

      #define TEST_BASETYPES     1  // 0000 0001
      #define TEST_STRUCTS       2  // 0000 0010
      #define TEST_CONTAINERS    4  // 0000 0100
      #define TEST_EXCEPTIONS    8  // 0000 1000
      #define TEST_NOTUSED     240  // 1111 0000 (reserved bits)

Tests that have not been executed at all count as errors.

**Example:**

During tests, the test client notices that some of the Struct tests fail.
Furthermore, due to some other problem none of the Exception tests is executed.
Therefore, the test client returns the code `10 = 2 | 8`, indicating the failure
of both test 2 (TEST_STRUCTS) and test 8 (TEST_EXCEPTIONS).


## SSL
Test Keys and Certificates are provided in multiple formats under the following
directory [test/keys](keys)